db.sumer_blog.remove();
db.sumer_category.remove();
db.sumer_category_list.remove();
db.sumer_micro_blog.remove();
db.sumer_album.remove();
db.sumer_photo.remove();
db.sumer_comment.remove();

db.sumer_blog_tags.remove();
db.sumer_photo_tags.remove();
db.sumer_resource_tags.remove();

db.sumer_comment_message.remove();
db.sumer_friend_message.remove();
db.sumer_recommend_message.remove();